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What Is Need Of Start 0? In Steed Of

Answer»

START is an assembler DIRECTIVE which has an optional operand, (0 in your example). This operand ACTS as the starting address of the program e.g. PROGNAME START X'3E0' TELLS the LINKAGE editor that this program is to be loaded into main storage at address '3E0' in hex. 

START is an assembler directive which has an optional operand, (0 in your example). This operand acts as the starting address of the program e.g. PROGNAME START X'3E0' tells the linkage editor that this program is to be loaded into main storage at address '3E0' in hex. 



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